Prohibition on rifles capable of firing .50 caliber ammunition

(a) In general Chapter 44 of title 18, United States Code, is amended— (1) in section 922, by adding at the end the following: (aa) Rifles capable of firing.50 caliber ammunition (1) In general Except as provided in paragraph (2), it shall be unlawful for any person to import, sell, manufacture, transfer, or possess, in or affecting interstate or foreign commerce, a rifle capable of firing.50 caliber ammunition. (2) Exceptions (A) Government use Paragraph (1) shall not apply to the importation for, manufacture for, sale to, transfer to, or possession by the United States, a department or agency of the United States, a State, or a department, agency, or political subdivision of a State, of a rifle capable of firing.50 caliber ammunition. (B) Grandfathered rifles Paragraph (1) shall not apply to the sale, transfer, or possession of any rifle otherwise lawfully possessed on or before the date of enactment of the Stop Arming Cartels Act of 2025.; and (2) in section 924(a)(1)(B), by striking or (q) and inserting (q), or (aa). (b) Inclusion of certain rifles as firearms under National Firearms Act (1) In general Section 5845(a) of the Internal Revenue Code of 1986 is amended by striking and (8) a destructive device and inserting (8) a destructive device; and (9) a rifle which is capable of firing.50 caliber ammunition and is lawfully possessed on or before the date of enactment of the Stop Arming Cartels Act of 2025. (2) Effective date (A) In general Subject to subparagraph (B), the amendments made by this subsection shall take effect on the date which is 12 months after the date of enactment of this Act. (B) Registration (i) In general Notwithstanding subparagraph (A) or any other provision of law, any person possessing a rifle which is capable of firing.50 caliber ammunition which is not registered to such person in the National Firearms Registration and Transfer Record shall register each such rifle so possessed with the Secretary in such form and manner as the Secretary may require within the 12-month period immediately following the date of enactment of this Act. No fee or tax shall be imposed with respect to any registration required under this subparagraph. (ii) Inclusion in registry Any registration described in clause (i) shall become a part of the National Firearms Registration and Transfer Record. No information or evidence required to be submitted or retained by a natural person to register a firearm under this subparagraph shall be used, directly or indirectly, as evidence against such person in any criminal proceeding with respect to a prior or concurrent violation of law. (C) Definitions In this paragraph: (i) National Firearms Registration and Transfer Record The term National Firearms Registration and Transfer Record means the registry established pursuant to section 5841 of the Internal Revenue Code of 1986. (ii) Secretary The term Secretary has the same meaning given such term under section 7701(a)(11)(B) of the Internal Revenue Code of 1986.